8673961 has 4 divisors (see below), whose sum is σ = 9184212. Its totient is φ = 8163712.

The previous prime is 8673953. The next prime is 8673989. The reversal of 8673961 is 1693768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5851561 + 2822400 = 2419^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 8673961 - 2³ = 8673953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8673901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255100 + ... + 255133.

It is an arithmetic number, because the mean of its divisors is an integer number (2296053).

Almost surely, 2^8673961 is an apocalyptic number.

It is an amenable number.

8673961 is a deficient number, since it is larger than the sum of its proper divisors (510251).

8673961 is a wasteful number, since it uses less digits than its factorization.

8673961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510250.

The product of its digits is 54432, while the sum is 40.

The square root of 8673961 is about 2945.1589091253. The cubic root of 8673961 is about 205.4656162442.

It can be divided in two parts, 86 and 73961, that added together give a palindrome (74047).

The spelling of 8673961 in words is "eight million, six hundred seventy-three thousand, nine hundred sixty-one".